Image processing program and image display device

1. A non-transitory computer readable recording medium on which is recorded an image processing program for causing a computer to display images of a game using a plurality of display devices, wherein said image processing program causes said computer to perform the steps of: (a) setting a virtual boundary in a virtual game space in which a mobile object can move, the virtual game space being larger than a display area defined by the plurality of display devices, the virtual boundary dividing the virtual game space into a plurality of divided game spaces; b) judging in which of the divided game spaces an intermediate position between a first display area and a second display area among the display areas corresponding to the respective display devices is positioned; and c) displaying the mobile object in the first display area if a result of the judgment indicates that the intermediate position exists in a first divided game space, and switching display area that displays the mobile object from the first display area to the second display area when the intermediate position is moved from the first divided game space into a second divided game space in response to the progress of the game.

2. The recording medium according to claim 1 , wherein the intermediate position is a boundary between the first display area and the second display area adjacent to the first display area.

3. A non transitory computer readable recording medium on which is recorded an image processing program for a computer to display displaying images of a game using a plurality of display screens, wherein said image processing program causes said computer to perform the steps of: (a) setting a virtual boundary in a two-dimensional or three-dimensional virtual game space in which a mobile object can move, the virtual game space being larger than a display area defined by the plurality of display screens, the virtual boundary dividing the virtual game space into a plurality of divided game spaces; (b) judging in which of the divided game spaces an intermediate position between an Nth display screen and another display screen different from the Nth display screen among the display screens is positioned, N being an integral number; and (c) displaying the mobile object in the Nth display screen if a result of the judgment indicates that the intermediate position belongs in a first divided game space and switching display area that displays the mobile object from the Nth display screen to the another display screen when the intermediate position is moved from the first divided game space into a second divided game space in response to the progress of the game.

4. The recording medium according to claim 3 , wherein the step (c) comprises: (c1) generating a first image to be displayed on the Nth display screen, the first image containing the mobile object and corresponding to a partial game space of a first range that includes the position of said mobile object; (c2) generating a second image to be displayed on the another display screen, the second image corresponding to another partial game space of a second range successive to the first range; and (c3) displaying the first and second images generated at the steps (c1) and (c2) respectively on the Nth display screen and the another display screen, wherein the generation of images at said steps (c1) and (c2) is performed with a plurality of image generation units arranged in the same direction as the alignment direction of said plurality of display screens.

5. The recording medium according to claim 3 , wherein the intermediate position is a boundary between the Nth display screen and the another display screen adjacent to the Nth display screen.

6. An image display device for displaying images of a game using a plurality of display devices, comprising: a setting unit configured to set a virtual boundary in a virtual game space in which a mobile object can move, the virtual game space being larger than a display area defined by the plurality of display devices, the virtual boundary dividing the virtual game space into a plurality of divided game spaces; a judgment unit configured to judge in which of the divided game spaces an intermediate position between a first display area and a second display area among the display areas corresponding to the respective display devices is positioned; and a display control unit configured to display the mobile object in the first display area if a result of the judgment indicates that the intermediate position exists in a first divided game space, and switching display area that displays the mobile object from the first display area to the second display area when the intermediate position is moved from the first divided game space into a second divided game space in response to the progress of the game.

7. The image display device according to claim 6 , wherein the intermediate position is a boundary between the first display area and the second display area adjacent to the first display area.

8. An image display device for displaying images of a game using a plurality of display screens, comprising: a setting unit configured to set a virtual boundary in a two-dimensional or three-dimensional virtual game space in which a mobile object can move, the virtual game space being larger than a display area defined by the plurality of display screens, the virtual boundary dividing the virtual game space into a plurality of divided game spaces; a judgment unit configured to judge in which of the divided game spaces an intermediate position between an Nth display screen and another display screen different from the Nth display screen among the display screens belongs is positioned, N being an integral number; and a display control unit configured to display the mobile object in the Nth display screen if a result of the judgment indicates that the intermediate position belongs in a first divided game space and switching display area that displays the mobile object from the Nth display screen to the another display screen when the intermediate position is moved from the first divided game space into a second divided game space in response to the progress of the game.

9. The image display device according to claim 8 , further comprising: a first image generation unit configured to generate a first image to be displayed on the Nth display screen, the first image containing the mobile object and corresponding to a partial game space of a first range that includes the position of said mobile object; and a second image generation unit configured to generate a second image to be displayed on the another display screen, the second image corresponding to another partial game space of a second range successive to the first range, wherein said first and second image generation units are arranged in the same direction as the alignment direction of said plurality of display screens.

10. The image display device according to claim 8 , wherein the intermediate position is a boundary between the Nth display screen and the another display screen adjacent to the Nth display screen.